Matches in DBpedia 2014 for { <http://dbpedia.org/resource/Betelgeuse> ?p ?o. }
- Betelgeuse abstract "Betelgeuse (/ˈbiːtəldʒuːz/, /ˈbɛtəldʒuːz/ or /ˈbiːtəldʒuːs/), also known by its Bayer designation Alpha Orionis (α Orionis, α Ori), is the ninth-brightest star in the night sky and second-brightest in the constellation of Orion. Distinctly reddish, it is a semiregular variable star whose apparent magnitude varies between 0.2 and 1.2, the widest range of any first-magnitude star. Betelgeuse is one of three stars that make up the Winter Triangle, and it marks the center of the Winter Hexagon. The star's name is derived from the Arabic يد الجوزاء Yad al-Jauzā', meaning "the Hand of al-Jauzā'", i.e. Orion, with mistransliteration into medieval Latin leading to the first character y being misread as a b.The star is classified as a red supergiant of spectral type M2Iab and is one of the largest and most luminous observable stars. If Betelgeuse were at the center of the Solar System, its surface would extend past the asteroid belt, possibly to the orbit of Jupiter and beyond, wholly engulfing Mercury, Venus, Earth and Mars. Estimates of its mass are poorly constrained, but range from 5 to 30 times that of the Sun. Its distance from Earth was estimated in 2008 at 640 light-years, yielding a mean absolute magnitude of about −6.02. Less than 10 million years old, Betelgeuse has evolved rapidly because of its high mass. Having been ejected from its birthplace in the Orion OB1 Association—which includes the stars in Orion's Belt—this crimson runaway has been observed moving through the interstellar medium at a supersonic speed of 30 km/s, creating a bow shock over 4 light-years wide. Currently in a late stage of stellar evolution, the supergiant is expected to proceed through its life cycle before exploding as a type II supernova within the next million years. An observation by the Herschel Space Observatory in January 2013 revealed that the star's winds are crashing against the surrounding interstellar medium.In 1920, Betelgeuse became the second star (after the Sun) to have the angular size of its photosphere measured. Since then, researchers have used telescopes with different technical parameters to measure the stellar giant, often with conflicting results. Studies since 1990 have produced an angular diameter (apparent size) ranging from 0.043 to 0.056 arcseconds, an incongruity largely caused by the star's tendency to periodically change shape. Due to limb darkening, variability, and angular diameters that vary with wavelength, many of the star's properties are not yet known with any certainty. Adding to these challenges, the surface of Betelgeuse is obscured by a complex, asymmetric envelope roughly 250 times the size of the star, caused by colossal mass loss.".
- Betelgeuse thumbnail Position_Alpha_Ori.png?width=300.
- Betelgeuse wikiPageExternalLink ap000725.html.
- Betelgeuse wikiPageExternalLink ap001222.html.
- Betelgeuse wikiPageExternalLink ap071225.html.
- Betelgeuse wikiPageExternalLink ap100106.html.
- Betelgeuse wikiPageExternalLink ap101023.html.
- Betelgeuse wikiPageExternalLink rsgintro_en.html.
- Betelgeuse wikiPageExternalLink irregions.html.
- Betelgeuse wikiPageExternalLink betel.html.
- Betelgeuse wikiPageID "53878".
- Betelgeuse wikiPageRevisionID "606219538".
- Betelgeuse absmagV "−6.02".
- Betelgeuse age "~7.3".
- Betelgeuse appmag "-2.99".
- Betelgeuse appmag "0.42".
- Betelgeuse appmag1Passband Visible_spectrum.
- Betelgeuse appmag2Passband J_band.
- Betelgeuse bV "1.85".
- Betelgeuse class "M2Iab".
- Betelgeuse constell Orion_(constellation).
- Betelgeuse distLy "643".
- Betelgeuse distPc "197".
- Betelgeuse epoch "J2000.0".
- Betelgeuse gravity "-0.5".
- Betelgeuse group ""note"".
- Betelgeuse hasPhotoCollection Betelgeuse.
- Betelgeuse luminosity "120000".
- Betelgeuse mass "7.7".
- Betelgeuse metal "0.05".
- Betelgeuse pError "1.1".
- Betelgeuse parallax "5.07".
- Betelgeuse pronounce ", or".
- Betelgeuse propMoDec "9.56".
- Betelgeuse propMoRa "24.95".
- Betelgeuse radialV "+21.91".
- Betelgeuse radius "950".
- Betelgeuse refs "ref| The following table provides a non-exhaustive list of angular measurements conducted since 1920. Also included is a column providing a current range of radii for each study based on Betelgeuse's most recent distance estimate (Harper et al) of : 1The final year of observations, unless otherwise noted. 2Uniform disk measurement, unless otherwise noted. 3Radii calculations use the same methodology as outlined in Note #2 below ‡Limb darkened measurement.|group=note|name=NOTEANGULAR".
- Betelgeuse rotation "5.0".
- Betelgeuse temperature "3140".
- Betelgeuse uB "2.06".
- Betelgeuse variable "SR c (semi-regular)".
- Betelgeuse subject Category:Arabic_words_and_phrases.
- Betelgeuse subject Category:Bayer_objects.
- Betelgeuse subject Category:Betelgeuse.
- Betelgeuse subject Category:Flamsteed_objects.
- Betelgeuse subject Category:HR_objects.
- Betelgeuse subject Category:Henry_Draper_Catalogue_objects.
- Betelgeuse subject Category:Hipparcos_objects.
- Betelgeuse subject Category:M-type_supergiants.
- Betelgeuse subject Category:Objects_within_1000_ly_of_Earth.
- Betelgeuse subject Category:Orion_(constellation).
- Betelgeuse subject Category:Semiregular_variable_stars.
- Betelgeuse subject Category:Stars_with_proper_names.
- Betelgeuse type BayerObjects.
- Betelgeuse type CelestialBody109239740.
- Betelgeuse type FlamsteedObjects.
- Betelgeuse type HIPObjects.
- Betelgeuse type HRObjects.
- Betelgeuse type HenryDraperCatalogueObjects.
- Betelgeuse type M-typeSupergiants.
- Betelgeuse type NaturalObject100019128.
- Betelgeuse type Object100002684.
- Betelgeuse type PhysicalEntity100001930.
- Betelgeuse type SemiregularVariableStars.
- Betelgeuse type Star109444100.
- Betelgeuse type StarsWithProperNames.
- Betelgeuse type Supergiant109450708.
- Betelgeuse type VariableStar109469152.
- Betelgeuse type Whole100003553.
- Betelgeuse type CelestialBody.
- Betelgeuse type Star.
- Betelgeuse type PhysicalBody.
- Betelgeuse comment "Betelgeuse (/ˈbiːtəldʒuːz/, /ˈbɛtəldʒuːz/ or /ˈbiːtəldʒuːs/), also known by its Bayer designation Alpha Orionis (α Orionis, α Ori), is the ninth-brightest star in the night sky and second-brightest in the constellation of Orion. Distinctly reddish, it is a semiregular variable star whose apparent magnitude varies between 0.2 and 1.2, the widest range of any first-magnitude star. Betelgeuse is one of three stars that make up the Winter Triangle, and it marks the center of the Winter Hexagon.".
- Betelgeuse label "Beteigeuze".
- Betelgeuse label "Betelgeuse".
- Betelgeuse label "Betelgeuse".
- Betelgeuse label "Betelgeuse".
- Betelgeuse label "Betelgeuse".
- Betelgeuse label "Betelgeuze (ster)".
- Betelgeuse label "Betelgeza".
- Betelgeuse label "Bételgeuse".
- Betelgeuse label "Бетельгейзе".
- Betelgeuse label "منكب الجوزاء".
- Betelgeuse label "ベテルギウス".
- Betelgeuse label "參宿四".
- Betelgeuse sameAs Betelgeuze.
- Betelgeuse sameAs Beteigeuze.
- Betelgeuse sameAs Μπετελγκέζ.
- Betelgeuse sameAs Betelgeuse.
- Betelgeuse sameAs Alfa_Orionis.
- Betelgeuse sameAs Bételgeuse.
- Betelgeuse sameAs Betelgeuse.
- Betelgeuse sameAs Betelgeuse.
- Betelgeuse sameAs ベテルギウス.
- Betelgeuse sameAs 베텔게우스.
- Betelgeuse sameAs Betelgeuze_(ster).
- Betelgeuse sameAs Betelgeza.
- Betelgeuse sameAs Betelgeuse.
- Betelgeuse sameAs m.0f2_8.